Top Ten Restaurants in Delhi

1. Bukhara: ITC, Maurya Sheraton Hotel
2. Punjabi by Nature: PVR Priya Complex
3. Karims
4. Sagar: Defence colony
5. Colonel's Kababs: Defence Colony
6. Masala Art: Taj Palace
7. Gulatis: Pandara Road
8. Dhaba: Rajouri Garden
9. Chowringee: IP Extension
10.The Great Kabab Factory: Punjabi Bagh

Some of the places worth visiting are:

Berco's and Fa Yian, for Chinese food
Karim's and Nizam's, for Mughlai food
Nirula's for a mix of Indian and western fast food
Sagar, in Defence Colony for Udipi food
English Dairy, a popular dhaba in Connaught Place for inexpensive vegetarian food

However, if you want to spend an evening with rich ambience, class and tantalizing dishes, then these are the places to look for:

Delhi ka Aangan (Hyatt Regency)
Darbar (Ashoka Hotel)
Corbetts (Claridges)
Bukhara (Maurya Sheraton)
Frontier (Ashoka Hotel)
Baluchi (The Hilton)
EI Arab (Regal Building)
Dum Pukht or the process of slow cooking developed in Awadh (Maurya Sheraton)
Kashmiri food at Chor Bizarre (Hotel Broadway)
Thai food at Baan Tahi (The Oberoi)
Sukothai ( Hauz Khas village)
Japanese food at Tokyo (Ashoka Hotel)
Osaka (Haus Khas village )

These can be found at places like:

Bengali Market near Connaught Place in the center of Delhi. Haldiram's stores located at every part of the city offer chaat, sweets and other spicy items.
Ashok's near Chawri Bazaar in Old Delhi is famous for Chaat.

The most popular and one of the delightful offerings of Indian cuisines can be found at Delhi Haat, where you can have the taste of real India. Delhi Haat has food stalls from almost every state in India, which offer cheap and quality food. The place has special importance in the sense that quality food is coupled with the trendy market depicting arts and crafts culture of India. For food lovers, eateries such as those at Paranthe wali gali, or chaat at Bengali Market and sunder Nagar, bhelpuri at Greater Kailash and sweetmeats from Annapoorna and Ghantewala can be a part of the gastronomical tour of Delhi.